Tautomeric and conformational isomerism of natural hydroxyanthraquinones

Natural 1,5-di-, 1,4,5-tri-, and 1,4,5,8-tetrahydroxyanthraquinones and their anions and metal complexes were shown to be equilibrium mixtures of tautomers and conformers using quantum-chemical and correlation analysis of elecronic absorption spectra. Solvent effects, ionization, complexation, and the introduction and substitution of substituents were accompanied by shifts of tautomeric and conformational equilibria that determine the color of the compounds. ©2006 Springer Science+Business Media, Inc.

Authors
Fain V.Ya. 1 , Zaitsev B.E. 1 , Ryabov M.A. 1
Journal
Chemistry of Natural Compounds
Number of issue
3
Language
English
Pages
269-276
Status
Published
Link
External link
DOI
10.1007/s10600-006-0097-3
Volume
42
Year
2006
Organizations
  • 1 Peoples Friendship University of Russia, ul. Miklukho-Maklaya, 6, 117198, Moscow, Russian Federation
Keywords
1,4,5,8-tetrahydroxy-2-methylanthraquinone; 1,4,5- trihydroxyanthraquinone; 1,5-dihydroxyanthraquinone; Anthrarufin; Cinnarubin; Digitopurpone; Erythroglaucin; Helminthosporin; Islandicin; Isoxanthorin; Morindaparvin B; Natural anthraquinones; Xanthorin; Ziganein
Date of creation
19.10.2018
Date of change
19.10.2018
Short link
https://repository.rudn.ru/en/records/article/record/3368/
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